Posts Tagged ‘dark-eyed juncos’
More grandkids if mama bird plays the field
INDIANA U. (US) — It’s all about the kids and the grandkids. That’s what biologist have learned about promiscuous female birds and why they mate outside their social pair. Continue…
Thursday, September 1, 2011 11:48 - 0 Comments
Science & Technology - May 4, 2010 11:18 - 1 Comment

The downside to tons of testosterone
INDIANA U. (US)—Too much—or too little—testosterone may put some males at an evolutionary disadvantage, according to new research involving an American songbird. (more…)










